In clinical practice, I generally see two types of patients. The first group consists of those who have lost all their energy due to extreme fasting. In Traditional Korean Medicine (TKM), this is often viewed as 'Spleen Deficiency' (Bi-heo), where the digestive and absorptive functions are weakened. In such cases, rather than further restriction, I prescribe herbs that boost vital energy (Qi) and increase metabolic rate. Patients often report a surprising experience: 'I feel less hungry, yet I have more vitality.' The second group includes those who feel heavy and prone to swelling. From a TKM perspective, this is seen as an accumulation of 'Phlegm-Fluid' (Dam-eum) or 'Blood Stasis' (Eo-hyeol)—states where metabolic waste blocks the body's circulation. These patients typically experience the drainage of unnecessary fluids and toxins, leading to reduced edema and a much lighter feeling in the body. I once tried extreme fasting myself out of sheer willpower, but the resulting dizziness made daily life impossible. Having experienced that mistake, I understand it well. Diet herbal medicine is not merely a tool for weight loss, but rather a supplement to restore the body's collapsed balance. Once we accurately identify where your circulation is blocked or where your energy is deficient, the path to weight loss becomes much smoother.